Rep. Matt Rosendale Launches Senate Bid, Setting Stage For Ugly GOP Primary

Rep. Matt Rosendale (R-Mont.) on Friday officially launched his bid for the U.S. Senate, giving Republican voters in Montana a second millionaire transplant to choose from in the upcoming June primary.

Rosendale, a hard-right conservative, will face GOP hopeful Tim Sheehy, a former Navy SEAL and wealthy businessman , for the opportunity to take on incumbent Democratic Sen. Jon Tester in November. Tester, who has held the seat since 2007, is widely considered one of the most vulnerable Democrats up for reelection.

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